Question

Simplify:
(i) (x²-5) (x+5) + 25
(ii) (t+s²) (t²-s)​

Answer 1

Step-by-step explanation:

Question 3 Simplify. (i) (x^2 − 5) (x + 5) + 25 (ii) (a^2 + 5) (b^3 + 3) + 5 (iii) (t + s^2) (t^2 − s) (iv) (a + b) (c − d) + (a − b) (c + d) + 2 (ac + bd) (v) (x + y) (2x + y) + (x + 2y) (x − y) (vi) (x + y) (x^2 − xy + y^2) (vii) (1.5x − 4y) (1.5x + 4y + 3) − 4.5x + 12y (viii) (a + b + c) (a + b − c)

Answer 2

Answer:

i) x³ + 5x² - 5x

ii) t³- ts + s²t² - s²

Step-by-step explanation:

1) ( x²-5) (x+5) +25

x²(x+5) -5 (x+5) +25

x³+ 5x² - 5x - 25 + 25

x³ + 5x² - 5x

2) (t+s²) (t²-s)

t(t²-s) + s²(t²-s)

t³ -ts + s²t² - s³